Rocket League United

Earlier this year, Microsoft showed an interest in opening up the Xbox One to cross-network play with other consoles, which seems to indicate that the company has already given Psyonix its blessing.

"We're still very confident that [Sony's] eventually going to open those doors and welcome us in, but we also are really understanding that it's going to take a while, especially given all the ramifications of everything," Dunham says.

Sony is open-minded to cross-console play as well, but has yet to take a firm stance, which is understandable, since opening up your online network to some other company's console isn't a decision one makes lightly.

We've asked Sony for comment, and will update as new information comes in.